<template>
  <div class="nav-bar">
    <div class="left"><slot name="left"></slot></div>
    <div class="center"><slot name="center"></slot></div>
    <div class="right"><slot name="right"></slot></div>
  </div>
</template>

<script>
export default {
    name: 'NavBar'
};
</script>

<style>
.nav-bar {
  display: flex;
  /* 一般导航栏的高度都是44px */
  height: 44px;
  line-height: 44px;
  text-align: center;
  box-shadow: 0 1px 1px rgba(100,100,100,.1);
}
.left {
    width: 60px;
    /* background-color: red; */
}
.center {
    /* 中间的部分独享剩余的空间 */
    flex: 1;
    
}
.right {
    width: 60px;
    /* background-color: green; */
}
</style>
